1945: Combat cameramen film the U.S. forces landing at the Iwo Jima beachhead. Marines and Coast Guard landing parties under attack, explosions at sea. A Coast Guard cutter. Barrage balloons in the sky. Landing Crafts move towards the shore. Explosions in the water. The U.S. Coast Guard landing party on the shore. Beachhead activities as the U.S. Marines arrive. Landing Craft reach the shore. Troops climb out, unload equipment and run inland. A crane at work. Troops crouch in the Landing Craft. They treat a wounded comrade. (World War II period).
Space Communications and the related problems and developments. Animation: Use of video for Space Communications requires highly directive antennas for power economy. Depicts enlargement of capture area of antennas located at terrestrial reception points. Efficiency in signal processing of the receiving equipment increased, to reduce intrinsic noise by reducing temperature of components. A satellite in Earth's orbit for space and terrestrial communications. Explains the Passive Sattelite Relay System using reflecting spheres; Single Orbiting Active Satellite System using line of sight communication, ideal for weather forecasting and mapping; and the sophisticated active Day Period Cry Satellite Orbiting System equipped with transponders.
Laser induced lightning experiments conducted by Electromagnetic Hazards Group at the Air Force Flight Dynamics Laboratory Mobile Test Station on Mt. Baldy, Colfax County, New Mexico. A U.S. Air Force technician near the equipment and machines takes a photo image of the equipment using hooded camera on tripod. Other U.S. Air Force personnel and civilian technicians watch. Personnel and technicians outside the trailer. One man holds up a picture just taken.
A meeting of the America First Committee at the Manhattan Center in New York CIty. A large crowd inside the Center. The Committee members on stage. Colonel Charles A Lindbergh on the podium. He addresses the meeting. Photographers take pictures. He talks about idealistic and practical view points regarding the World War, balance between the two, potential entry of U.S. into the war, how ill-prepared the U.S. is to wage war, and the welfare of Americans. People wave U.S. flags and applaud.
A meeting of the America First Committee at the Manhattan Center in New York City during World War II. A large crowd inside the Center. The Committee members on stage. Colonel Charles A Lindbergh on the podium. He addresses the meeting. Photographers take pictures. He talks about the U.S. military situation, U.S. entry into war, and U.S. contribution to progress of mankind. He requests the people to join the America First Committee and asks for their support. People cheer and applaud.
Construction and use of bunkers on Fire Support Bases (FSB) by U.S. Army soldiers in Vietnam. Soldiers construct the entrance to a wooden personnel bunker on FBS Charlie One at Camp Carroll. They assemble wooden planks to construct steps. A soldier uses a saw to cut wood. Another takes measurement and puts markings. Dust all around. Soldiers move in and out of the bunker. (Vietnam War period).
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